/* eslint-disable no-empty */
/*
 * 精确除法
 *
 * */
export const addDiv = (arg1, arg2) => {
  var t1 = 0
  var t2 = 0
  var r1; var r2
  try {
    t1 = arg1.toString().split('.')[1].length
  } catch (e) {}
  try {
    t2 = arg2.toString().split('.')[1].length
  } catch (e) {}

  r1 = Number(arg1.toString().replace('.', ''))
  r2 = Number(arg2.toString().replace('.', ''))
  return (r1 / r2) * Math.pow(10, t2 - t1)
}

/*
 * 精确乘法
 * */
export const accMul = (arg1, arg2) => {
  var m = 0
  var s1 = arg1.toString()
  var s2 = arg2.toString()
  try {
    m += s1.split('.')[1].length
  } catch (e) {}
  try {
    m += s2.split('.')[1].length
  } catch (e) {}
  return Number(s1.replace('.', '')) * Number(s2.replace('.', '')) / Math.pow(10, m)
}

// 精确加法
export const accAdd = (arg1, arg2) => {
  var r1, r2, m, n
  try {
    r1 = arg1.toString().split('.')[1].length
  } catch (e) {
    r1 = 0
  }
  try {
    r2 = arg2.toString().split('.')[1].length
  } catch (e) {
    r2 = 0
  }
  m = Math.pow(10, Math.max(r1, r2))
  // 动态控制精度长度
  n = (r1 >= r2) ? r1 : r2
  return ((arg1 * m + arg2 * m) / m).toFixed(n)
}

/*
 * 精确减法
 * */
export const accSubtr = (arg1, arg2) => {
  var r1, r2, m, n
  try {
    r1 = arg1.toString().split('.')[1].length
  } catch (e) {
    r1 = 0
  }
  try {
    r2 = arg2.toString().split('.')[1].length
  } catch (e) {
    r2 = 0
  }
  m = Math.pow(10, Math.max(r1, r2))
  // 动态控制精度长度
  n = (r1 >= r2) ? r1 : r2
  return ((arg1 * m - arg2 * m) / m).toFixed(n)
}
